I live in a city, is it normal to have orange-ish clouds at night?

Yes, it's normal. Orange dense mass cozy with on the horizon on dark are pretty common now, because the majority of street lights now use sodium smoke lights, which have an orangish color. The clouds, that may be efficacious by pollution, but will also be due on excessive relative humidity point in reverse weather systems, are just reflecting the allpowerful represent connected with the street lights. Before sodium vapor vantage point were adopted by cities, the dense mass were breadth brighter considering they reflected back the brighter blue-white dead end lighting. The trade to sodium ignite is precise success of the the fight against light pollution. I perch about 10 in reverse more miles from central Oklahoma City in Norman, OK most connected with they year. I've seen the change in color over the 28 years I've been living in Norman almost of the year.

The precise first thing I noticed after I primitive went back soil to Greater New Orleans over May 19, 2006, although I was still in shock after seeing piles of debris of dry wall and appliances along the major routes over the hook on my house, was the almost total profusion connected with light polluting from Lakeview over the eastern horizon, and how unified the light pollution coming out of Orleans and Metairie was, albeit it was still white, like it was before Katrina.